May 2, 1999: Billy Gunn turns against X-Pac during a tag team match and goes solo.

June 28, 1999: Hunter Hearst Helmsley tells Billy Gunn that Jesse James and X-Pac are getting royalties from the DX name.

July 25, 1999: X-Pac and Jesse James defeated Hunter Hearst Helmsley and Billy Gunn for the rights of DX.

September 23, 1999: Jesse James and Billy Gunn reform the New Age Outlaws and win the WWF World Tag Team Titles from The Rock and Mankind.

October 25, 1999: Hunter Hearst Helmsley and X-Pac help the New Age Outlaws to defeat The Rock and Steve Austin and DeGeneration X is reformed.

November 1999 - August 2000: Hunter Hearst Helmsley left DX when he "married" Stephanie McMahon, Billy Gunn was kicked out of the group, and Road Dogg and X-Pac teamed for awhile before they were split up.

July 22, 2002: Triple H and Shawn Michaels reunited to create DX to make Raw General Manager Eric Bischoff's life a living hell, but a few minutes after reuniting HHH pedigreed HBK to once again kill DX.

2006 – After feuding since 2002, Triple H and Shawn Michaels put their differences aside due to their mutual hatred of the McMahon family, and reformed the new D-X.